Scheduling Request Resource Configuration for Uplink Diversity
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Solution Overview
Problem
Current wireless communication systems lack diversity in uplink resource allocation for different services, leading to reduced effectiveness in transmitting various types of data, such as Internet of Things, voice, and mobile broadband services, due to the same format of scheduling request resources being used for all services.
Innovation Solution
The system configures different scheduling request resources based on the characteristics of each service, including uplink resource types like subcarrier spacing, cyclic prefix length, and transmission time interval, allowing terminals to autonomously select the appropriate resources for transmitting data to the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same scheduling request resource format is used for all services, then the system structure is simple, but the transmission effectiveness for different services cannot be improved
Solution Approach 1:
The patent applies local quality by configuring different scheduling request resources with different formats (e.g., different numerologies, TTI types, or resource allocation patterns) specifically tailored to the requirements of different services. Each service type (e.g., URLLC, eMBB, mMTC) receives customized scheduling request resources that match its performance requirements, thereby improving transmission effectiveness while maintaining manageable system complexity through service-specific optimization rather than universal design
2Adaptability or versatility
If multiple scheduling request resources with different formats are configured, then the diversity and transmission effectiveness for different services is improved, but the system complexity increases
Solution Approach 1:
The patent segments the scheduling request resources into different sets or pools, where each set corresponds to specific service types or service characteristics. This segmentation allows the MAC layer to select appropriate resources based on service requirements without requiring complete knowledge of all possible resource configurations at the PHY layer, thereby reducing MAC-PHY interaction complexity while maintaining service-specific optimization
Solution Approach 2:
The patent implements preliminary action by pre-configuring and pre-allocating different scheduling request resources with specific formats before actual data transmission occurs. The base station prepares multiple scheduling request resource configurations in advance, and the terminal selects the appropriate pre-configured resource based on service requirements, eliminating the need for complex real-time negotiation between MAC and PHY layers
Data Source
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AI summary
Embodiments of this application provide a resource application method and a device. The method includes: receiving, by a terminal, a scheduling request resource configuration sent by a base station, where the scheduling request resource configuration indicates an uplink resource type or logical channel information; and sending, by the terminal, a scheduling request to the base station on a target scheduling request resource based on the scheduling request resource configuration and uplink data, where the target scheduling request resource indicates a target uplink resource type, and the scheduling request resource configuration includes the target scheduling request resource. In the embodiments of this application, when diversity of the uplink data is considered, the base station configures different scheduling request resources for different service characteristics, and the terminal selects different scheduling request resources for different service characteristics, to improve effectiveness of uplink service transmission.